Coil bobbin for transformer



FIG. 1 is a perspective view of a coil bobbin for transformer according to the claimed design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a cross-sectional view thereof, taken along line 8-8 of FIG. 2; and,

FIG. 9 is an exploded perspective view thereof. 

CLAIM The ornamental design for a coil bobbin for transformer, as shown and described. 